Hayreddin, in his letter, mentioned a problem in addition to the request to establish a fleet. It was that the maritime adventurers from the southern countries were advancing towards the Continent with increasing vigor. The number of colonies, colonial villages, and even colonial towns on the Mediterranean coast of the Continent was rapidly growing. With a large number of expeditions entering, especially those officially supported by the governments of various countries and city-states, the veil of mystery that shrouded the Continent's surface was gradually lifted, revealing its abundant riches bit by bit and attracting more people.